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Visible-light optical system for all-view 3D measuring instrument

An optical system and three-dimensional measurement technology, which is applied in the field of visible light optical systems, achieves the effects of wide information receiving range, high system telecentricity, and improved resolution

Active Publication Date: 2017-05-31
HARBIN INST OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a visible light optical system for a full-view three-dimensional measuring instrument. The visible light optical system solves the problems of wide-angle, telephoto, high resolution, high-precision telecentricity, etc. Positioning, angle measurement provides usable optical system

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Embodiment Construction

[0015] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0016] Such as figure 1 As shown, the visible light optical system for a full-view three-dimensional measuring instrument provided by the present invention is composed of a low-distortion wide-angle imaging optical lens 1 and a linear array CMOS camera 2, and the linear array CMOS camera 2 and the low-distortion wide-angle imaging optical lens 1 are fixed together The low-distortion wide-angle imaging optical lens 1 clearly images the collected visible light images on the focal plane of the line array CMOS camera 2 .

[0017] Such as figure 2 As show...

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Abstract

The invention discloses a visible-light optical system for an all-view 3D measuring instrument. The visible-light optical system consists of a low-distortion wide-angle imaging optical lens and a linear array CMOS (complementary metal oxide semiconductor) camera which are fixed together, and the low-distortion wide-angle optical lens clearly images searched visible light images on the focus surface of the linear array CMOS camera. The visible-light optical system solves the problems about wide angle, long focus, high resolution, high precision, telecentric degree and the like, and an available optical system is provided for accurate positioning and angle measurement with the all-view 3D measuring instrument. The optical system enables the angle measuring accuracy of the 3D measuring instrument to reach second level accuracy in a work distance beyond the field depth range of 3 m-100 m in 90-degree view field, and linear deviation is ensured to be consistent for distortion of different view fields, which makes a very high requirement for the optical system.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and relates to a visible light optical system used for a full-view three-dimensional measuring instrument. Background technique [0002] The fully automatic image measuring instrument can perform three-dimensional coordinate measurement conveniently and quickly, meeting the requirements of higher speed, more convenient and more accurate measurement for size detection proposed by the modern manufacturing industry. It is a bottleneck technology to solve the development of the manufacturing industry. The full-view high-precision three-dimensional measuring instrument is a precision angle measurement and positioning system with a large field of view, high resolution, and a large working distance range. Its angle measurement accuracy requires second-level accuracy. As one of the key core components of the system, the optical system mainly undertakes the important task of collecting target info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
CPCG01B11/005
Inventor 康为民张建隆贺磊
Owner HARBIN INST OF TECH
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